Krissy predicted that she would sell 65 sweaters. She actually sold 85 sweaters. What are the values of a and b in the table below? Percent Error Item Approximate value Exact value Error Absolute error Ratio Percent error Sweaters 65 85 a b a = negative 20; b = negative 20 a = negative 20; b = 20 a = 20; b = negative 20 a = 20; b = 20
Answers
Answer:
The second on I think
Step-by-step explanation:
The missing values in the table are as follows:
Error = 20
Absolute error = 20
Ratio ≈ 0.3077
Percent error ≈ 30.77%
Given information,
Item = Sweaters
Approximate value = 65
Exact value = 85
let's calculate the values of a and b in the table:
Error (a) can be calculated as the difference between the approximate value and the exact value:
a = Exact value - Approximate value
a = 85 - 65
a = 20
Absolute error (b) represents the absolute value of the error:
b = |Error|
b = |20|
b = 20
Ratio is calculated by dividing the error by the approximate value:
Ratio = Error / Approximate value
Ratio = 20 / 65
Ratio ≈ 0.3077 (rounded to four decimal places)
Percent error is calculated by multiplying the ratio by 100:
Percent error = Ratio x 100
Percent error ≈ 0.3077 x 100
Percent error ≈ 30.77% (rounded to two decimal places)
Therefore, the values in the table are as follows:
Item = Sweaters
Approximate value = 65
Exact value = 85
Error = 20
Absolute error = 20
Ratio ≈ 0.3077
Percent error ≈ 30.77%
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Complete question =
Krissy predicted that she would sell 65 sweaters. She actually sold 85 sweaters. What are the values of a and b in the
table below?
Item = Sweaters
Approximate value = 65
Exact value = 85
Error = a
Absolute error = b
Ratio
Percent error
Related Questions
Function f(x) =ax +b where a and b are integers and a<0 has a domain 1
Answers
Answer:
sorry i read the question wrong and put a wrong answer im not sure how to delete
Step-by-step explanation:
abc is an isosceles triangle. Solve for x. In your final answer, include all of the necessary calculations
Answers
1. Using the Rule, sum of interior angles of a Triangle is Equal to 180:
180 - 88 = 92
2. Using the Rule that Angle A = Angle C ( since its an Isosceles triangle ) :
92 / 2 = 46
Therefore A=46 & C=46
3. Using the Rule, Angle of a Straight line is 180:
Angle of C = 46
X = 180 - 46
X = 134
Hence Solved ✌
I Hope it helps!
Answer:
The Angle of C = 46
X = 180 - 46
X = 134
Step-by-step explanation:
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Answers
Answer:
12 and 78 are complementary.
80 and 100 are supplementary.
50 and 50 are neither.
Step-by-step explanation:
Hope it helps! =D
What is the equation for the line in slope-intercept form?
Answers
Answer:
y = 8x
Step-by-step explanation:
slope-intercept form: y = mx + b when m = slope and b = y-intercept
y-intercept is when the line crosses the y (vertical) axis. This is at (0,0) so b = 0
Next, slope = change in y/change in x
There are 3 points plotted but only 2 are centered on the grid well.
(0,0) and (2, 16)
slope = change in y/change in x
slope = (0 - 16) / (0 - 2)
slope = -16/-2
slope = 8
so when m = 8 and b = 0: y = mx + b
y = 8x + 0 so:
y = 8x
Answer:
y = 8x
Step-by-step explanation:
y-intercept: 0 (because it starts from the origin)
slope: go from the origin (the first point on the whole graph) to the last point of the graph since that way it would be easier... count your way up and after you've counted it should be 8. and since the line is going up, its a positive slope. therefore, the slope is 8
Rudina needs to determine the actual area of the entire rectangular toy courtyard. She used the model below to estimate the area.
(A) Use the scale drawing to determine the actual length of the toy courtyard.
(B) Use the scale drawing to determine the actual width of the toy courtyard.
Answers
Answer:
Step-by-step explanation:
Even though im in high school im not completely sure about this, try multiplying all the points.
Which one of the following compounds have a coefficient present? Choose all correct answers.
Group of answer choices
NO3
3CO
H3N2O
3NaCa
Answers
Can someone help me and tell me what this is I dont get it
Answers
Answer:
of the First rectangle Is smaller than the second the factor Is greater than One , if the First and the second are the same the scale factor Is one, and of the First Is bigger than the second the factor Is less than one
so:
a greater
b greater
c less
D greater
e equal
f less
g equal
Answers in bold:
P to Q: greater than 1P to R: greater than 1Q to S: less than 1Q to R: greater than 1S to P: equal to 1R to P: less than 1P to S: equal to 1========================================================
Explanation:
We have these three rules for scale factors
scale factor > 1, enlarge the image0 < scale factor < 1, shrink the imagescale factor = 1, the preimage and image are identicalWith those rules in mind, we have enlargements for these transformations.
P to QP to RQ to RAll of which represent some scale factor larger than 1. We don't have enough information to pinpoint what that scale factor would be.
In other words, if you go from small to big, then you apply some scale factor larger than 1 to enlarge the image.
----------------
We also have these reductions
Q to SR to PThis is where we go from big to small. The image shrinks and we use some scale factor between 0 and 1.
----------------
And finally we have these transformations in which the size of the image does not change. Therefore the scale factor is 1.
P to SS to PThe order doesn't matter for this subset, but the order will matter for the other batches of transformations.
Please help me :) I really need help lol
Answers
HELP ANSWER THIS I WILL GIVE TEN POINTS AND THANKS!
REMEMBER TO EXPLAIN STEP-BY STEP! AND GET THE CORRECT ANSWER!
The units and tens digits of one-two digit integer are the tens and units digits of another two- digit integer, respectively. If the product of the two integers is 4930, what is their sum?
Answers
Answer:
(10t + u)(10u + t) = 4,930
100tu + 10t^2 + 10u^2 + tu = 4,930
101tu + 10t^2 + 10u^2 = 4,930
10t^2 + (101u)t + (10u^2 - 4,930) = 0
(101u)^2 - 4(10)(10u^2 - 4,930)
= 10,201u^2 - 400u^2 + 197,200
= 9,801u^2 + 197,200
We see that u = 5 gives 442,225.
√442,225 = 665
(10t + 5)(50 + t) = 4,930
500t + 10t^2 + 250 + 5t = 4,930
10t^2 + 505t - 4,680 = 0
2t^2 + 101t - 936 = 0
t = (-101 + √(101^2 - 4(2)(-936)))/(2×2)
= (-101 + √17,689)/4
= (-101 + 133)/4 = 32/4 = 8
So the numbers are 58 and 85.
58 + 85 = 143
After reading Question 2a use the information to help you solve the word problem below. Determine the correct steps to solve the problem and prepare to explain your reasoning. *
Answers
Answer:
0.08 x X
Step-by-step explanation:
X=Total amount to pay (not including sales tax)
8% = 0.08
since I don't know what the total amount (without tax) is I will use X
8% x X or
0.08 x X
What is the measure of angle x?
enter your answer in the box.
Answers
First, assuming these are vertical angles, you can double 41 and 56 to find the total of all the other angles.
41*2+56*2 = 194
Now we can subtract 194 from 360 to get 166 degrees, and we now divide by 2 to find just the angle of x.
166/2 = 83
therefore, x = 83 degrees
30 POINTS. Fake answers will be reported.
-
In this activity, you will solve the problem presented in the introduction. Patricia wants to estimate the future consumer price index (CPI). She first found the CPI for January of every year from 1990 to 2010. She created a scatter plot of the data and drew the line of best fit as shown.
Part A
What is the equation for the line of best fit?
Part B
What would the x-value be to find the CPI for the year 2030?
Part C
Use the equation of the line of best fit and the value of x found for the year 2030 to estimate the CPI for the year 2030.
Answers
answer for points
(No need to do a explaination on how u got it)
The variable of B stands for the
(area of the base)
(height)
(length)
(width)
In this prism, B equals
(2)
(9)
(12)
(24)
The variable of H stands for
(area of the base)
(height)
(length)
(width)
In this prism, H equals
(2)
(9)
(12)
The voulme of the prism is
(113)
(126)
(216)
(300)
Answers
H=height and 9cm
Volume= 216cm
help me pleasee, giving 10 points for itt
Answers
Answer:
(-1,0)
Step-by-step explanation:
May it will be correct
A cone has a volume of 47.1 cubic meters and a height of 5 meters. What is its radius?
Use \(\pi\) = 3.14 and round your answer to the nearest hundredth.
Answers
volume= 3.14r^2 5/3
what arethe answers i need them now pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls
Answers
Answer:
B ; A
Step-by-step explanation:
4)
65/60
(65:5)/(60:5)
13/12
5)
18/12
(18:6)/(12:6)
3/2
2/2 + 1/2
1 1/2
Part A Can you map shape I onto shape II by a sequence of transformations? If so, give a sequence of transformations that maps shape I onto shape II.
Part B
Complete the sequence of transformations you found in part A, but in a different order. Does this also map shape I onto shape II? What does this mean?
Question 2 Part A
If you reflect any shape across the x-axis and then rotate it 90° clockwise about the origin, do you get the same result as if you reflect it across the y-axis and then rotate it 90° counterclockwise about the origin? What does this mean?
Part B
If you reflect any shape across the x-axis and then rotate it 180° about the origin, do you get the same result that you would if you reflect it across the y-axis and then rotate it 180° about the origin? What does that mean?
Part C
If you reflect any shape across the x-axis and then across the y-axis, do you get the same result that you would if you rotated it 180° about the origin? What does that mean?
Answers
Part C is the answer
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On a cross country road trip, Dani's family traveled 600 miles on a Friday and almost reached the Grand Canyon. On Saturday morning they drove 25% of the distance they drove on Friday. How far did they drive on Saturday morning? Use the double number line to help you.
Answers
Because I asked Siri
The short sides of a rectangle are 2 inches. The long sides of the same rectangle are three less than a certain number of inches.
Sketch and label the sides of this rectangle. Use an algebraic expression to represent the length of the long sides.
Answers
Answer:
14 inches??>.......
Step-by-step explanation:
2=x-3
5=x
2,2,5,5
4,10
14 inches
A group of friends was working on a student film. They spent $650 on equipment, which was 65% of their total budget. What was the total budget for their student film?
Answers
1,072.5
work to prove:650 x .65 = 422.5
650 + 422.5 = 1,072.5
650x.65=422.5
650+422.5=1,072.5
Need answers asap please when answer put number beside it tysm , will give brainly if all answers are right.
Answers
Answer:
Step-by-step explanation:2,4
Answer:
Step-by-step explanation:
#18 complementary
3x +45 = 90
3x + 45-45 = 90 -45
3x = 45
Divide both sides by 3
3x/3 = 45/3
x = 15
#20 supplementary
2x + 3x + 25 = 180
5x + 25 = 180
5x + 25 - 25 = 180 -25
5x = 155
Divide both sides by 5
5x/5 = 155/5
x = 31
#15 - vertical
4x - 25 = 75
4x - 25 + 25 = 75 + 25
4x = 100
Divide both sides by 4
4x/4 = 100/4
x = 25
#16 - complementary
4x + 2x = 90
6x = 90
divide by 6 each side
x = 15
#19 complementary
x -20 + x = 90
2x -20 = 90
2x -20 + 20 =90 +20
2x = 110
Divide both sides by 2
2x / 2 = 110/2
x = 55
A bag contains 36 marbles either red or green in color. The ratio of red marbles to green marbles is 3 to 1. How many green marbles are there?
Answers
Answer:
12
Step-by-step explanation:
Hope this helps
Please help me. Please
Answers
Answer:
im pretty sure that the answer would be B
Step-by-step explanation:
Answer:
it would be B bc u will replace 2 with 6
Step-by-step explanation:
hope this helps
whoever answers correctly = brainliest
Answers
1. x = 31
2x + x - 3 = 90
3x - 3 = 90
3x - 3 + 3 = 90 + 3
3x + 93
3x / 3 = 93 / 3
x = 31
2.
NPO =
90 - (x - 3) = 2x
90 - (31 - 3) = 2 * 31
90 - (28) = 62
62 = 62
KPN =
90 - 62 = KPN
28 = KPN
The population of a city is expected to increase by 7.5% next year. If p represents the current population, which expression represents the expected population next year?
Explain how you got your answer
A 1 + .0075p B 1.75p C 1.075p
Answers
Answer:
B. 1.75 p
Step-by-step explanation:
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Answer:
1.75p
Step-by-step explanation:
Could you please give me brainliest? I'm trying to rank up.
Devaughn's age is two times Sydney's age. The sum of their ages is 57 . What is Sydney's age?
Answers
Answer:
sydney age is 19yrs
Step-by-step explanation:
2x+x=57
3x=57
x=57/3
x=19
sydney age is 19yrs
Devaughn's age is 2x=2(19)=38
Answer:
Sydney is 19yrs old
Step-by-step explanation:
Find The Area Of The Shape
(if you help, I will brainliest you!)
Answers
Answer:
1020
Step-by-step explanation:ddo the area with both triangles then multiply
Answer: 1020
Step-by-step explanation:
During two games, the number of points scored by a basketball team increased from 75 to 87. By what percentage did the number of points scored increase?
A - 12%
B - 14%
C - 86%
D - 16%
Answers
Answer:
D 16% increase
Step-by-step explanation:
This is ez
just did this stuff in pre algebra
The solution is Option D.
The percentage of increase in number of points is 16 %
What is Percentage?
A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, %
Given data ,
The number of points scored by the basketball team = 75
The increased points scored by the basketball team = 87
The increase in points =
increased points scored by the basketball team - number of points scored by the basketball team
The increase in points = 87 - 75
= 12 points
So , the percentage increase in points = ( increase in points / number of points scored by the basketball team ) x 100
The percentage increase in points = ( 12 / 75 ) x 100
= 0.16 x 100
= 16 %
Therefore , the percentage increase is 16 %
Hence , the percentage of increase in number of points is 16 %
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please help me i will give brainliest to first person to anwser.
Answers
First we start with the formula for cylinders v=(pi)r(squared)h filled in Thats v=(3.14)(8 squared) (8) which brings us to the answer 1607.68 but you must round to the nearest tenth aka 1607.7
Answer:
The first option, V ≈ 1607.7 in²
Step-by-step explanation:
Find the volume of the given cylinder.
\(\begin{center}\framebox{\parbox{4cm}{\textbf{Volume of a Cylinder:}\\[2ex]The volume of a cylinder with radius $r$ and height $h$ is given by the formula:\\[2ex]\center{$V = \pi r^2 h$} \\ \\}}\end{center}\)
Given:
r = 8 in
h = 8 in
π = 3.14
Find:
V = ?? in³
\(\hrulefill\)
Now solving,
Substitute the given values into the formula:
=> V = (3.14)(8)²(8)
Using a calculator to simplify:
=> V = 1607.68 in²
Rounded to the nearest tenth:
∴ V ≈ 1607.7 in²
Thus, the first option is correct.
The graph represents a relation where x represents the independent variable and y represents the dependent variable. a coordinate plane with points at negative 5 comma 1, negative 2 comma 0, 0 comma 2, 1 comma negative 2, 1 comma 3, and 5 comma 1 Is the relation a function? Explain. No, because for each input there is not exactly one output No, because for each output there is not exactly one input Yes, because for each input there is exactly one output Yes, because for each output there is exactly one input
Answers
No the given relation is not a function because for one input we are getting two different values of output which negates the definition of the function.
A relation is said to be a function when each and every element of domain has a unique and distinct image means we will get only one output per input.So
statement 1: No, because for each input there is not exactly one output . This is true.statement 2: No, because for each output there is not exactly one input. This is false.statement 3:Yes, because for each input there is exactly one output .This is false.statement 4:Yes, because for each output there is exactly one input.This is also false.Hence the given relation is not a function.
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The given relation is not a function because for each input (x-value), there is not exactly one output (y-value).
In a function, each input (x-value) should have only one corresponding output (y-value). However, in this relation, the input value of 1 has two different output values: -2 and 3. Therefore, it violates the definition of a function.
To illustrate this, let's look at the points (-2, 0), (1, -2), and (1, 3). The x-value of 1 appears twice in the relation, but it has two different y-values associated with it. This means that for the input value of 1, there is not exactly one output value, which is why the given relation is not a function.
In conclusion, the relation is not a function because for each input there is not exactly one output.